I sold a single storey place because of the rebuilding costs. Now I am considering a much smaller 2 storey unit, 1000sqft (land) to A&A.
However I am considering adding an additional level /roof terrace to maximise the height of the place. I think additional beams are needed, the staircases and the toliets need to be redone. How much would that typically cost? can that be achieved with $300k with the smaller footprint?